Curling iron



FIG. 1 is a front perspective view of the new ornamental curling iron of the present invention.

FIG. 2 is a left side view thereof.

FIG. 3 is a right side view thereof.

FIG. 4 is a rear perspective view thereof.

FIG. 5 is a front view thereof.

FIG. 6 is a rear view thereof.

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a top view thereof. 

CLAIM The ornamental design for a curling iron, as shown and described. 